blob: e19b042ce81bf9d181fe4ef4516de4b070206541 [file] [log] [blame]
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +08001/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * QEMU loongson 3a5000 develop board emulation
4 *
5 * Copyright (c) 2021 Loongson Technology Corporation Limited
6 */
7#include "qemu/osdep.h"
8#include "qemu/units.h"
9#include "qemu/datadir.h"
10#include "qapi/error.h"
11#include "hw/boards.h"
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +080012#include "hw/char/serial.h"
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +080013#include "sysemu/sysemu.h"
14#include "sysemu/qtest.h"
15#include "sysemu/runstate.h"
16#include "sysemu/reset.h"
17#include "sysemu/rtc.h"
18#include "hw/loongarch/virt.h"
19#include "exec/address-spaces.h"
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +080020#include "hw/irq.h"
21#include "net/net.h"
Xiaojuan Yang6a6f26f2022-06-06 20:43:29 +080022#include "hw/loader.h"
23#include "elf.h"
Xiaojuan Yang69d9c742022-06-06 20:43:25 +080024#include "hw/intc/loongarch_ipi.h"
25#include "hw/intc/loongarch_extioi.h"
26#include "hw/intc/loongarch_pch_pic.h"
27#include "hw/intc/loongarch_pch_msi.h"
28#include "hw/pci-host/ls7a.h"
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +080029#include "hw/pci-host/gpex.h"
30#include "hw/misc/unimp.h"
Xiaojuan Yang27ad7562022-07-12 16:32:01 +080031#include "hw/loongarch/fw_cfg.h"
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +080032#include "target/loongarch/cpu.h"
Xiaojuan Yang3efa6fa2022-07-12 16:32:04 +080033#include "hw/firmware/smbios.h"
Xiaojuan Yang735143f2022-07-12 16:32:05 +080034#include "hw/acpi/aml-build.h"
35#include "qapi/qapi-visit-common.h"
36#include "hw/acpi/generic_event_device.h"
37#include "hw/mem/nvdimm.h"
Xiaojuan Yangfda3f152022-07-12 16:32:06 +080038#include "sysemu/device_tree.h"
39#include <libfdt.h>
Xiaojuan Yanga1f7d782022-08-10 15:50:35 +080040#include "hw/core/sysbus-fdt.h"
41#include "hw/platform-bus.h"
Xiaojuan Yangf8ab9aa2022-08-10 16:41:52 +080042#include "hw/display/ramfb.h"
Xiaojuan Yangc3da26f2022-08-25 11:36:59 +080043#include "hw/mem/pc-dimm.h"
Xiaojuan Yang3dfbb6d2022-10-28 09:40:07 +080044#include "sysemu/tpm.h"
Xiaojuan Yang288431a2022-11-07 10:09:47 +080045#include "sysemu/block-backend.h"
46#include "hw/block/flash.h"
Richard Hendersoncc37d982023-03-15 17:43:13 +000047#include "qemu/error-report.h"
48
Xiaojuan Yang288431a2022-11-07 10:09:47 +080049
50static void virt_flash_create(LoongArchMachineState *lams)
51{
52 DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01);
53
54 qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE);
55 qdev_prop_set_uint8(dev, "width", 4);
56 qdev_prop_set_uint8(dev, "device-width", 2);
57 qdev_prop_set_bit(dev, "big-endian", false);
58 qdev_prop_set_uint16(dev, "id0", 0x89);
59 qdev_prop_set_uint16(dev, "id1", 0x18);
60 qdev_prop_set_uint16(dev, "id2", 0x00);
61 qdev_prop_set_uint16(dev, "id3", 0x00);
62 qdev_prop_set_string(dev, "name", "virt.flash");
63 object_property_add_child(OBJECT(lams), "virt.flash", OBJECT(dev));
64 object_property_add_alias(OBJECT(lams), "pflash",
65 OBJECT(dev), "drive");
66
67 lams->flash = PFLASH_CFI01(dev);
68}
69
70static void virt_flash_map(LoongArchMachineState *lams,
71 MemoryRegion *sysmem)
72{
73 PFlashCFI01 *flash = lams->flash;
74 DeviceState *dev = DEVICE(flash);
75 hwaddr base = VIRT_FLASH_BASE;
76 hwaddr size = VIRT_FLASH_SIZE;
77
78 assert(QEMU_IS_ALIGNED(size, VIRT_FLASH_SECTOR_SIZE));
79 assert(size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX);
80
81 qdev_prop_set_uint32(dev, "num-blocks", size / VIRT_FLASH_SECTOR_SIZE);
82 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
83 memory_region_add_subregion(sysmem, base,
84 sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0));
85
86}
87
88static void fdt_add_flash_node(LoongArchMachineState *lams)
89{
90 MachineState *ms = MACHINE(lams);
91 char *nodename;
92
93 hwaddr flash_base = VIRT_FLASH_BASE;
94 hwaddr flash_size = VIRT_FLASH_SIZE;
95
96 nodename = g_strdup_printf("/flash@%" PRIx64, flash_base);
97 qemu_fdt_add_subnode(ms->fdt, nodename);
98 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash");
99 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
100 2, flash_base, 2, flash_size);
101 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4);
102 g_free(nodename);
103}
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800104
Xiaojuan Yangca5bf7a2022-10-28 09:40:06 +0800105static void fdt_add_rtc_node(LoongArchMachineState *lams)
106{
107 char *nodename;
108 hwaddr base = VIRT_RTC_REG_BASE;
109 hwaddr size = VIRT_RTC_LEN;
110 MachineState *ms = MACHINE(lams);
111
112 nodename = g_strdup_printf("/rtc@%" PRIx64, base);
113 qemu_fdt_add_subnode(ms->fdt, nodename);
114 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "loongson,ls7a-rtc");
Xiaojuan Yange8c82032022-11-16 11:49:35 +0800115 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size);
Xiaojuan Yangca5bf7a2022-10-28 09:40:06 +0800116 g_free(nodename);
117}
118
119static void fdt_add_uart_node(LoongArchMachineState *lams)
120{
121 char *nodename;
122 hwaddr base = VIRT_UART_BASE;
123 hwaddr size = VIRT_UART_SIZE;
124 MachineState *ms = MACHINE(lams);
125
126 nodename = g_strdup_printf("/serial@%" PRIx64, base);
127 qemu_fdt_add_subnode(ms->fdt, nodename);
128 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "ns16550a");
129 qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, base, 0x0, size);
130 qemu_fdt_setprop_cell(ms->fdt, nodename, "clock-frequency", 100000000);
Xiaojuan Yang0208ba72022-11-10 14:14:40 +0800131 qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename);
Xiaojuan Yangca5bf7a2022-10-28 09:40:06 +0800132 g_free(nodename);
133}
134
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800135static void create_fdt(LoongArchMachineState *lams)
136{
137 MachineState *ms = MACHINE(lams);
138
139 ms->fdt = create_device_tree(&lams->fdt_size);
140 if (!ms->fdt) {
141 error_report("create_device_tree() failed");
142 exit(1);
143 }
144
145 /* Header */
146 qemu_fdt_setprop_string(ms->fdt, "/", "compatible",
147 "linux,dummy-loongson3");
148 qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2);
149 qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2);
Xiaojuan Yang0208ba72022-11-10 14:14:40 +0800150 qemu_fdt_add_subnode(ms->fdt, "/chosen");
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800151}
152
153static void fdt_add_cpu_nodes(const LoongArchMachineState *lams)
154{
155 int num;
156 const MachineState *ms = MACHINE(lams);
157 int smp_cpus = ms->smp.cpus;
158
159 qemu_fdt_add_subnode(ms->fdt, "/cpus");
160 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1);
161 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0);
162
163 /* cpu nodes */
164 for (num = smp_cpus - 1; num >= 0; num--) {
165 char *nodename = g_strdup_printf("/cpus/cpu@%d", num);
166 LoongArchCPU *cpu = LOONGARCH_CPU(qemu_get_cpu(num));
Tianrui Zhao0cf14782023-05-18 14:58:15 +0800167 CPUState *cs = CPU(cpu);
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800168
169 qemu_fdt_add_subnode(ms->fdt, nodename);
170 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu");
171 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
172 cpu->dtb_compatible);
Tianrui Zhao0cf14782023-05-18 14:58:15 +0800173 if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) {
174 qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id",
175 ms->possible_cpus->cpus[cs->cpu_index].props.node_id);
176 }
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800177 qemu_fdt_setprop_cell(ms->fdt, nodename, "reg", num);
178 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle",
179 qemu_fdt_alloc_phandle(ms->fdt));
180 g_free(nodename);
181 }
182
183 /*cpu map */
184 qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map");
185
186 for (num = smp_cpus - 1; num >= 0; num--) {
187 char *cpu_path = g_strdup_printf("/cpus/cpu@%d", num);
188 char *map_path;
189
190 if (ms->smp.threads > 1) {
191 map_path = g_strdup_printf(
192 "/cpus/cpu-map/socket%d/core%d/thread%d",
193 num / (ms->smp.cores * ms->smp.threads),
194 (num / ms->smp.threads) % ms->smp.cores,
195 num % ms->smp.threads);
196 } else {
197 map_path = g_strdup_printf(
198 "/cpus/cpu-map/socket%d/core%d",
199 num / ms->smp.cores,
200 num % ms->smp.cores);
201 }
202 qemu_fdt_add_path(ms->fdt, map_path);
203 qemu_fdt_setprop_phandle(ms->fdt, map_path, "cpu", cpu_path);
204
205 g_free(map_path);
206 g_free(cpu_path);
207 }
208}
209
210static void fdt_add_fw_cfg_node(const LoongArchMachineState *lams)
211{
212 char *nodename;
213 hwaddr base = VIRT_FWCFG_BASE;
214 const MachineState *ms = MACHINE(lams);
215
216 nodename = g_strdup_printf("/fw_cfg@%" PRIx64, base);
217 qemu_fdt_add_subnode(ms->fdt, nodename);
218 qemu_fdt_setprop_string(ms->fdt, nodename,
219 "compatible", "qemu,fw-cfg-mmio");
220 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
Xiaojuan Yangfeae45d2022-08-10 16:53:36 +0800221 2, base, 2, 0x18);
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800222 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0);
223 g_free(nodename);
224}
225
226static void fdt_add_pcie_node(const LoongArchMachineState *lams)
227{
228 char *nodename;
Xiaojuan Yang74725232022-07-29 15:30:18 +0800229 hwaddr base_mmio = VIRT_PCI_MEM_BASE;
230 hwaddr size_mmio = VIRT_PCI_MEM_SIZE;
231 hwaddr base_pio = VIRT_PCI_IO_BASE;
232 hwaddr size_pio = VIRT_PCI_IO_SIZE;
233 hwaddr base_pcie = VIRT_PCI_CFG_BASE;
234 hwaddr size_pcie = VIRT_PCI_CFG_SIZE;
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800235 hwaddr base = base_pcie;
236
237 const MachineState *ms = MACHINE(lams);
238
239 nodename = g_strdup_printf("/pcie@%" PRIx64, base);
240 qemu_fdt_add_subnode(ms->fdt, nodename);
241 qemu_fdt_setprop_string(ms->fdt, nodename,
242 "compatible", "pci-host-ecam-generic");
243 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci");
244 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3);
245 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2);
246 qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0);
247 qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0,
Xiaojuan Yang74725232022-07-29 15:30:18 +0800248 PCIE_MMCFG_BUS(VIRT_PCI_CFG_SIZE - 1));
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800249 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0);
250 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
251 2, base_pcie, 2, size_pcie);
252 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges",
Xiaojuan Yang74725232022-07-29 15:30:18 +0800253 1, FDT_PCI_RANGE_IOPORT, 2, VIRT_PCI_IO_OFFSET,
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800254 2, base_pio, 2, size_pio,
255 1, FDT_PCI_RANGE_MMIO, 2, base_mmio,
256 2, base_mmio, 2, size_mmio);
257 g_free(nodename);
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800258}
259
Xiaojuan Yangee413a52022-08-10 15:33:57 +0800260static void fdt_add_irqchip_node(LoongArchMachineState *lams)
261{
262 MachineState *ms = MACHINE(lams);
263 char *nodename;
264 uint32_t irqchip_phandle;
265
266 irqchip_phandle = qemu_fdt_alloc_phandle(ms->fdt);
267 qemu_fdt_setprop_cell(ms->fdt, "/", "interrupt-parent", irqchip_phandle);
268
269 nodename = g_strdup_printf("/intc@%lx", VIRT_IOAPIC_REG_BASE);
270 qemu_fdt_add_subnode(ms->fdt, nodename);
271 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 3);
272 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0);
273 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 0x2);
274 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 0x2);
275 qemu_fdt_setprop(ms->fdt, nodename, "ranges", NULL, 0);
276
277 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
278 "loongarch,ls7a");
279
280 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
281 2, VIRT_IOAPIC_REG_BASE,
282 2, PCH_PIC_ROUTE_ENTRY_OFFSET);
283
284 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", irqchip_phandle);
285 g_free(nodename);
286}
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800287
Tianrui Zhao0cf14782023-05-18 14:58:15 +0800288static void fdt_add_memory_node(MachineState *ms,
289 uint64_t base, uint64_t size, int node_id)
290{
291 char *nodename = g_strdup_printf("/memory@%" PRIx64, base);
292
293 qemu_fdt_add_subnode(ms->fdt, nodename);
294 qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 2, base, 2, size);
295 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory");
296
297 if (ms->numa_state && ms->numa_state->num_nodes) {
298 qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", node_id);
299 }
300
301 g_free(nodename);
302}
303
Xiaojuan Yang9e6602d2022-06-06 20:43:30 +0800304#define PM_BASE 0x10080000
305#define PM_SIZE 0x100
306#define PM_CTRL 0x10
307
Xiaojuan Yang3efa6fa2022-07-12 16:32:04 +0800308static void virt_build_smbios(LoongArchMachineState *lams)
309{
310 MachineState *ms = MACHINE(lams);
311 MachineClass *mc = MACHINE_GET_CLASS(lams);
312 uint8_t *smbios_tables, *smbios_anchor;
313 size_t smbios_tables_len, smbios_anchor_len;
314 const char *product = "QEMU Virtual Machine";
315
316 if (!lams->fw_cfg) {
317 return;
318 }
319
320 smbios_set_defaults("QEMU", product, mc->name, false,
321 true, SMBIOS_ENTRY_POINT_TYPE_64);
322
323 smbios_get_tables(ms, NULL, 0, &smbios_tables, &smbios_tables_len,
324 &smbios_anchor, &smbios_anchor_len, &error_fatal);
325
326 if (smbios_anchor) {
327 fw_cfg_add_file(lams->fw_cfg, "etc/smbios/smbios-tables",
328 smbios_tables, smbios_tables_len);
329 fw_cfg_add_file(lams->fw_cfg, "etc/smbios/smbios-anchor",
330 smbios_anchor, smbios_anchor_len);
331 }
332}
333
334static void virt_machine_done(Notifier *notifier, void *data)
335{
336 LoongArchMachineState *lams = container_of(notifier,
337 LoongArchMachineState, machine_done);
338 virt_build_smbios(lams);
Xiaojuan Yang735143f2022-07-12 16:32:05 +0800339 loongarch_acpi_setup(lams);
Xiaojuan Yang3efa6fa2022-07-12 16:32:04 +0800340}
341
Song Gao0d588c42023-01-10 11:29:16 +0800342static void virt_powerdown_req(Notifier *notifier, void *opaque)
343{
344 LoongArchMachineState *s = container_of(notifier,
345 LoongArchMachineState, powerdown_notifier);
346
347 acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS);
348}
349
Xiaojuan Yang27ad7562022-07-12 16:32:01 +0800350struct memmap_entry {
351 uint64_t address;
352 uint64_t length;
353 uint32_t type;
354 uint32_t reserved;
355};
356
357static struct memmap_entry *memmap_table;
358static unsigned memmap_entries;
359
360static void memmap_add_entry(uint64_t address, uint64_t length, uint32_t type)
361{
362 /* Ensure there are no duplicate entries. */
363 for (unsigned i = 0; i < memmap_entries; i++) {
364 assert(memmap_table[i].address != address);
365 }
366
367 memmap_table = g_renew(struct memmap_entry, memmap_table,
368 memmap_entries + 1);
369 memmap_table[memmap_entries].address = cpu_to_le64(address);
370 memmap_table[memmap_entries].length = cpu_to_le64(length);
371 memmap_table[memmap_entries].type = cpu_to_le32(type);
372 memmap_table[memmap_entries].reserved = 0;
373 memmap_entries++;
374}
375
Xiaojuan Yang9e6602d2022-06-06 20:43:30 +0800376/*
377 * This is a placeholder for missing ACPI,
378 * and will eventually be replaced.
379 */
380static uint64_t loongarch_virt_pm_read(void *opaque, hwaddr addr, unsigned size)
381{
382 return 0;
383}
384
385static void loongarch_virt_pm_write(void *opaque, hwaddr addr,
386 uint64_t val, unsigned size)
387{
388 if (addr != PM_CTRL) {
389 return;
390 }
391
392 switch (val) {
393 case 0x00:
394 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
395 return;
396 case 0xff:
397 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
398 return;
399 default:
400 return;
401 }
402}
403
404static const MemoryRegionOps loongarch_virt_pm_ops = {
405 .read = loongarch_virt_pm_read,
406 .write = loongarch_virt_pm_write,
407 .endianness = DEVICE_NATIVE_ENDIAN,
408 .valid = {
409 .min_access_size = 1,
410 .max_access_size = 1
411 }
412};
413
Xiaojuan Yang6a6f26f2022-06-06 20:43:29 +0800414static struct _loaderparams {
415 uint64_t ram_size;
416 const char *kernel_filename;
Xiaojuan Yangfb1cd3a2022-07-12 16:32:03 +0800417 const char *kernel_cmdline;
418 const char *initrd_filename;
Xiaojuan Yang6a6f26f2022-06-06 20:43:29 +0800419} loaderparams;
420
421static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr)
422{
Tianrui Zhao51d54502023-03-27 19:23:13 +0800423 return addr & MAKE_64BIT_MASK(0, TARGET_PHYS_ADDR_SPACE_BITS);
Xiaojuan Yang6a6f26f2022-06-06 20:43:29 +0800424}
425
426static int64_t load_kernel_info(void)
427{
428 uint64_t kernel_entry, kernel_low, kernel_high;
429 ssize_t kernel_size;
430
431 kernel_size = load_elf(loaderparams.kernel_filename, NULL,
432 cpu_loongarch_virt_to_phys, NULL,
433 &kernel_entry, &kernel_low,
434 &kernel_high, NULL, 0,
435 EM_LOONGARCH, 1, 0);
436
437 if (kernel_size < 0) {
438 error_report("could not load kernel '%s': %s",
439 loaderparams.kernel_filename,
440 load_elf_strerror(kernel_size));
441 exit(1);
442 }
443 return kernel_entry;
444}
445
Xiaojuan Yang735143f2022-07-12 16:32:05 +0800446static DeviceState *create_acpi_ged(DeviceState *pch_pic, LoongArchMachineState *lams)
447{
448 DeviceState *dev;
449 MachineState *ms = MACHINE(lams);
450 uint32_t event = ACPI_GED_PWR_DOWN_EVT;
451
452 if (ms->ram_slots) {
453 event |= ACPI_GED_MEM_HOTPLUG_EVT;
454 }
455 dev = qdev_new(TYPE_ACPI_GED);
456 qdev_prop_set_uint32(dev, "ged-event", event);
457
458 /* ged event */
459 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, VIRT_GED_EVT_ADDR);
460 /* memory hotplug */
461 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, VIRT_GED_MEM_ADDR);
462 /* ged regs used for reset and power down */
463 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, VIRT_GED_REG_ADDR);
464
465 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
Bibo Mao456eb812022-12-28 11:07:19 +0800466 qdev_get_gpio_in(pch_pic, VIRT_SCI_IRQ - VIRT_GSI_BASE));
Xiaojuan Yang735143f2022-07-12 16:32:05 +0800467 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
468 return dev;
469}
470
Xiaojuan Yanga1f7d782022-08-10 15:50:35 +0800471static DeviceState *create_platform_bus(DeviceState *pch_pic)
472{
473 DeviceState *dev;
474 SysBusDevice *sysbus;
475 int i, irq;
476 MemoryRegion *sysmem = get_system_memory();
477
478 dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE);
479 dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE);
480 qdev_prop_set_uint32(dev, "num_irqs", VIRT_PLATFORM_BUS_NUM_IRQS);
481 qdev_prop_set_uint32(dev, "mmio_size", VIRT_PLATFORM_BUS_SIZE);
482 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
483
484 sysbus = SYS_BUS_DEVICE(dev);
485 for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) {
Bibo Mao456eb812022-12-28 11:07:19 +0800486 irq = VIRT_PLATFORM_BUS_IRQ - VIRT_GSI_BASE + i;
Xiaojuan Yanga1f7d782022-08-10 15:50:35 +0800487 sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(pch_pic, irq));
488 }
489
490 memory_region_add_subregion(sysmem,
491 VIRT_PLATFORM_BUS_BASEADDRESS,
492 sysbus_mmio_get_region(sysbus, 0));
493 return dev;
494}
495
Xiaojuan Yang735143f2022-07-12 16:32:05 +0800496static void loongarch_devices_init(DeviceState *pch_pic, LoongArchMachineState *lams)
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800497{
Thomas Huth240294c2023-05-23 13:04:34 +0200498 MachineClass *mc = MACHINE_GET_CLASS(lams);
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800499 DeviceState *gpex_dev;
500 SysBusDevice *d;
501 PCIBus *pci_bus;
502 MemoryRegion *ecam_alias, *ecam_reg, *pio_alias, *pio_reg;
Xiaojuan Yang9e6602d2022-06-06 20:43:30 +0800503 MemoryRegion *mmio_alias, *mmio_reg, *pm_mem;
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800504 int i;
505
506 gpex_dev = qdev_new(TYPE_GPEX_HOST);
507 d = SYS_BUS_DEVICE(gpex_dev);
508 sysbus_realize_and_unref(d, &error_fatal);
509 pci_bus = PCI_HOST_BRIDGE(gpex_dev)->bus;
Xiaojuan Yang1895b962022-08-25 11:57:33 +0800510 lams->pci_bus = pci_bus;
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800511
512 /* Map only part size_ecam bytes of ECAM space */
513 ecam_alias = g_new0(MemoryRegion, 1);
514 ecam_reg = sysbus_mmio_get_region(d, 0);
515 memory_region_init_alias(ecam_alias, OBJECT(gpex_dev), "pcie-ecam",
Xiaojuan Yang74725232022-07-29 15:30:18 +0800516 ecam_reg, 0, VIRT_PCI_CFG_SIZE);
517 memory_region_add_subregion(get_system_memory(), VIRT_PCI_CFG_BASE,
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800518 ecam_alias);
519
520 /* Map PCI mem space */
521 mmio_alias = g_new0(MemoryRegion, 1);
522 mmio_reg = sysbus_mmio_get_region(d, 1);
523 memory_region_init_alias(mmio_alias, OBJECT(gpex_dev), "pcie-mmio",
Xiaojuan Yang74725232022-07-29 15:30:18 +0800524 mmio_reg, VIRT_PCI_MEM_BASE, VIRT_PCI_MEM_SIZE);
525 memory_region_add_subregion(get_system_memory(), VIRT_PCI_MEM_BASE,
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800526 mmio_alias);
527
528 /* Map PCI IO port space. */
529 pio_alias = g_new0(MemoryRegion, 1);
530 pio_reg = sysbus_mmio_get_region(d, 2);
531 memory_region_init_alias(pio_alias, OBJECT(gpex_dev), "pcie-io", pio_reg,
Xiaojuan Yang74725232022-07-29 15:30:18 +0800532 VIRT_PCI_IO_OFFSET, VIRT_PCI_IO_SIZE);
533 memory_region_add_subregion(get_system_memory(), VIRT_PCI_IO_BASE,
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800534 pio_alias);
535
536 for (i = 0; i < GPEX_NUM_IRQS; i++) {
537 sysbus_connect_irq(d, i,
538 qdev_get_gpio_in(pch_pic, 16 + i));
539 gpex_set_irq_num(GPEX_HOST(gpex_dev), i, 16 + i);
540 }
541
Xiaojuan Yang74725232022-07-29 15:30:18 +0800542 serial_mm_init(get_system_memory(), VIRT_UART_BASE, 0,
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800543 qdev_get_gpio_in(pch_pic,
Bibo Mao456eb812022-12-28 11:07:19 +0800544 VIRT_UART_IRQ - VIRT_GSI_BASE),
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800545 115200, serial_hd(0), DEVICE_LITTLE_ENDIAN);
Xiaojuan Yangca5bf7a2022-10-28 09:40:06 +0800546 fdt_add_uart_node(lams);
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800547
548 /* Network init */
549 for (i = 0; i < nb_nics; i++) {
Thomas Huthb697a482023-06-29 14:54:49 +0200550 pci_nic_init_nofail(&nd_table[i], pci_bus, mc->default_nic, NULL);
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800551 }
552
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800553 /*
554 * There are some invalid guest memory access.
555 * Create some unimplemented devices to emulate this.
556 */
557 create_unimplemented_device("pci-dma-cfg", 0x1001041c, 0x4);
Xiaojuan Yang74725232022-07-29 15:30:18 +0800558 sysbus_create_simple("ls7a_rtc", VIRT_RTC_REG_BASE,
Xiaojuan Yangc117f682022-06-06 20:43:28 +0800559 qdev_get_gpio_in(pch_pic,
Bibo Mao456eb812022-12-28 11:07:19 +0800560 VIRT_RTC_IRQ - VIRT_GSI_BASE));
Xiaojuan Yangca5bf7a2022-10-28 09:40:06 +0800561 fdt_add_rtc_node(lams);
Xiaojuan Yang9e6602d2022-06-06 20:43:30 +0800562
563 pm_mem = g_new(MemoryRegion, 1);
564 memory_region_init_io(pm_mem, NULL, &loongarch_virt_pm_ops,
565 NULL, "loongarch_virt_pm", PM_SIZE);
566 memory_region_add_subregion(get_system_memory(), PM_BASE, pm_mem);
Xiaojuan Yang735143f2022-07-12 16:32:05 +0800567 /* acpi ged */
568 lams->acpi_ged = create_acpi_ged(pch_pic, lams);
Xiaojuan Yanga1f7d782022-08-10 15:50:35 +0800569 /* platform bus */
570 lams->platform_bus_dev = create_platform_bus(pch_pic);
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800571}
572
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800573static void loongarch_irq_init(LoongArchMachineState *lams)
574{
575 MachineState *ms = MACHINE(lams);
576 DeviceState *pch_pic, *pch_msi, *cpudev;
577 DeviceState *ipi, *extioi;
578 SysBusDevice *d;
579 LoongArchCPU *lacpu;
580 CPULoongArchState *env;
581 CPUState *cpu_state;
Tianrui Zhao6027d272022-12-13 20:50:16 +0800582 int cpu, pin, i, start, num;
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800583
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800584 extioi = qdev_new(TYPE_LOONGARCH_EXTIOI);
585 sysbus_realize_and_unref(SYS_BUS_DEVICE(extioi), &error_fatal);
586
587 /*
588 * The connection of interrupts:
589 * +-----+ +---------+ +-------+
590 * | IPI |--> | CPUINTC | <-- | Timer |
591 * +-----+ +---------+ +-------+
592 * ^
593 * |
594 * +---------+
595 * | EIOINTC |
596 * +---------+
597 * ^ ^
598 * | |
599 * +---------+ +---------+
600 * | PCH-PIC | | PCH-MSI |
601 * +---------+ +---------+
602 * ^ ^ ^
603 * | | |
604 * +--------+ +---------+ +---------+
605 * | UARTs | | Devices | | Devices |
606 * +--------+ +---------+ +---------+
607 */
608 for (cpu = 0; cpu < ms->smp.cpus; cpu++) {
609 cpu_state = qemu_get_cpu(cpu);
610 cpudev = DEVICE(cpu_state);
611 lacpu = LOONGARCH_CPU(cpu_state);
612 env = &(lacpu->env);
613
Song Gao78464f02023-04-06 14:57:27 +0800614 ipi = qdev_new(TYPE_LOONGARCH_IPI);
615 sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal);
616
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800617 /* connect ipi irq to cpu irq */
Song Gao78464f02023-04-06 14:57:27 +0800618 qdev_connect_gpio_out(ipi, 0, qdev_get_gpio_in(cpudev, IRQ_IPI));
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800619 /* IPI iocsr memory region */
620 memory_region_add_subregion(&env->system_iocsr, SMP_IPI_MAILBOX,
621 sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi),
Song Gao78464f02023-04-06 14:57:27 +0800622 0));
Xiaojuan Yangddf93262022-07-05 14:49:00 +0800623 memory_region_add_subregion(&env->system_iocsr, MAIL_SEND_ADDR,
624 sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi),
Song Gao78464f02023-04-06 14:57:27 +0800625 1));
Song Gao646c39b2023-04-06 15:25:28 +0800626 /*
627 * extioi iocsr memory region
628 * only one extioi is added on loongarch virt machine
629 * external device interrupt can only be routed to cpu 0-3
630 */
631 if (cpu < EXTIOI_CPUS)
632 memory_region_add_subregion(&env->system_iocsr, APIC_BASE,
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800633 sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi),
634 cpu));
Tianrui Zhao758a7472023-05-17 09:22:00 +0800635 env->ipistate = ipi;
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800636 }
637
638 /*
639 * connect ext irq to the cpu irq
640 * cpu_pin[9:2] <= intc_pin[7:0]
641 */
Song Gao646c39b2023-04-06 15:25:28 +0800642 for (cpu = 0; cpu < MIN(ms->smp.cpus, EXTIOI_CPUS); cpu++) {
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800643 cpudev = DEVICE(qemu_get_cpu(cpu));
644 for (pin = 0; pin < LS3A_INTC_IP; pin++) {
645 qdev_connect_gpio_out(extioi, (cpu * 8 + pin),
646 qdev_get_gpio_in(cpudev, pin + 2));
647 }
648 }
649
650 pch_pic = qdev_new(TYPE_LOONGARCH_PCH_PIC);
Tianrui Zhaof4d10ce2022-12-27 11:19:57 +0800651 num = VIRT_PCH_PIC_IRQ_NUM;
Tianrui Zhao270950b2022-12-14 09:57:18 +0800652 qdev_prop_set_uint32(pch_pic, "pch_pic_irq_num", num);
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800653 d = SYS_BUS_DEVICE(pch_pic);
654 sysbus_realize_and_unref(d, &error_fatal);
Xiaojuan Yang74725232022-07-29 15:30:18 +0800655 memory_region_add_subregion(get_system_memory(), VIRT_IOAPIC_REG_BASE,
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800656 sysbus_mmio_get_region(d, 0));
657 memory_region_add_subregion(get_system_memory(),
Xiaojuan Yang74725232022-07-29 15:30:18 +0800658 VIRT_IOAPIC_REG_BASE + PCH_PIC_ROUTE_ENTRY_OFFSET,
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800659 sysbus_mmio_get_region(d, 1));
660 memory_region_add_subregion(get_system_memory(),
Xiaojuan Yang74725232022-07-29 15:30:18 +0800661 VIRT_IOAPIC_REG_BASE + PCH_PIC_INT_STATUS_LO,
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800662 sysbus_mmio_get_region(d, 2));
663
Tianrui Zhao270950b2022-12-14 09:57:18 +0800664 /* Connect pch_pic irqs to extioi */
665 for (int i = 0; i < num; i++) {
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800666 qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i));
667 }
668
669 pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI);
Tianrui Zhao270950b2022-12-14 09:57:18 +0800670 start = num;
Tianrui Zhao6027d272022-12-13 20:50:16 +0800671 num = EXTIOI_IRQS - start;
672 qdev_prop_set_uint32(pch_msi, "msi_irq_base", start);
673 qdev_prop_set_uint32(pch_msi, "msi_irq_num", num);
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800674 d = SYS_BUS_DEVICE(pch_msi);
675 sysbus_realize_and_unref(d, &error_fatal);
Xiaojuan Yang74725232022-07-29 15:30:18 +0800676 sysbus_mmio_map(d, 0, VIRT_PCH_MSI_ADDR_LOW);
Tianrui Zhao6027d272022-12-13 20:50:16 +0800677 for (i = 0; i < num; i++) {
678 /* Connect pch_msi irqs to extioi */
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800679 qdev_connect_gpio_out(DEVICE(d), i,
Tianrui Zhao6027d272022-12-13 20:50:16 +0800680 qdev_get_gpio_in(extioi, i + start));
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800681 }
Xiaojuan Yangdc93b8d2022-06-06 20:43:27 +0800682
Xiaojuan Yang735143f2022-07-12 16:32:05 +0800683 loongarch_devices_init(pch_pic, lams);
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800684}
685
Xiaojuan Yang98afb0d2022-07-12 16:32:02 +0800686static void loongarch_firmware_init(LoongArchMachineState *lams)
687{
688 char *filename = MACHINE(lams)->firmware;
689 char *bios_name = NULL;
690 int bios_size;
691
692 lams->bios_loaded = false;
Xiaojuan Yang288431a2022-11-07 10:09:47 +0800693
694 virt_flash_map(lams, get_system_memory());
695
Xiaojuan Yang98afb0d2022-07-12 16:32:02 +0800696 if (filename) {
697 bios_name = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename);
698 if (!bios_name) {
699 error_report("Could not find ROM image '%s'", filename);
700 exit(1);
701 }
702
703 bios_size = load_image_targphys(bios_name, VIRT_BIOS_BASE, VIRT_BIOS_SIZE);
704 if (bios_size < 0) {
705 error_report("Could not load ROM image '%s'", bios_name);
706 exit(1);
707 }
708
709 g_free(bios_name);
710
711 memory_region_init_ram(&lams->bios, NULL, "loongarch.bios",
712 VIRT_BIOS_SIZE, &error_fatal);
713 memory_region_set_readonly(&lams->bios, true);
714 memory_region_add_subregion(get_system_memory(), VIRT_BIOS_BASE, &lams->bios);
715 lams->bios_loaded = true;
716 }
717
718}
719
Xiaojuan Yang6a6f26f2022-06-06 20:43:29 +0800720static void reset_load_elf(void *opaque)
721{
722 LoongArchCPU *cpu = opaque;
723 CPULoongArchState *env = &cpu->env;
724
725 cpu_reset(CPU(cpu));
726 if (env->load_elf) {
727 cpu_set_pc(CPU(cpu), env->elf_address);
728 }
729}
730
Xiaojuan Yangfb1cd3a2022-07-12 16:32:03 +0800731static void fw_cfg_add_kernel_info(FWCfgState *fw_cfg)
732{
733 /*
734 * Expose the kernel, the command line, and the initrd in fw_cfg.
735 * We don't process them here at all, it's all left to the
736 * firmware.
737 */
738 load_image_to_fw_cfg(fw_cfg,
739 FW_CFG_KERNEL_SIZE, FW_CFG_KERNEL_DATA,
740 loaderparams.kernel_filename,
741 false);
742
743 if (loaderparams.initrd_filename) {
744 load_image_to_fw_cfg(fw_cfg,
745 FW_CFG_INITRD_SIZE, FW_CFG_INITRD_DATA,
746 loaderparams.initrd_filename, false);
747 }
748
749 if (loaderparams.kernel_cmdline) {
750 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE,
751 strlen(loaderparams.kernel_cmdline) + 1);
752 fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA,
753 loaderparams.kernel_cmdline);
754 }
755}
756
757static void loongarch_firmware_boot(LoongArchMachineState *lams)
758{
759 fw_cfg_add_kernel_info(lams->fw_cfg);
760}
761
762static void loongarch_direct_kernel_boot(LoongArchMachineState *lams)
763{
764 MachineState *machine = MACHINE(lams);
765 int64_t kernel_addr = 0;
766 LoongArchCPU *lacpu;
767 int i;
768
769 kernel_addr = load_kernel_info();
770 if (!machine->firmware) {
771 for (i = 0; i < machine->smp.cpus; i++) {
772 lacpu = LOONGARCH_CPU(qemu_get_cpu(i));
773 lacpu->env.load_elf = true;
774 lacpu->env.elf_address = kernel_addr;
775 }
776 }
777}
778
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800779static void loongarch_init(MachineState *machine)
780{
Xiaojuan Yangfb1cd3a2022-07-12 16:32:03 +0800781 LoongArchCPU *lacpu;
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800782 const char *cpu_model = machine->cpu_type;
783 ram_addr_t offset = 0;
784 ram_addr_t ram_size = machine->ram_size;
Tianrui Zhao0cf14782023-05-18 14:58:15 +0800785 uint64_t highram_size = 0, phyAddr = 0;
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800786 MemoryRegion *address_space_mem = get_system_memory();
787 LoongArchMachineState *lams = LOONGARCH_MACHINE(machine);
Tianrui Zhao0cf14782023-05-18 14:58:15 +0800788 int nb_numa_nodes = machine->numa_state->num_nodes;
789 NodeInfo *numa_info = machine->numa_state->nodes;
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800790 int i;
Xiaojuan Yang02183692022-10-28 09:40:05 +0800791 hwaddr fdt_base;
Tianrui Zhao8f307712023-05-16 16:27:57 +0800792 const CPUArchIdList *possible_cpus;
793 MachineClass *mc = MACHINE_GET_CLASS(machine);
794 CPUState *cpu;
Tianrui Zhao0cf14782023-05-18 14:58:15 +0800795 char *ramName = NULL;
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800796
797 if (!cpu_model) {
798 cpu_model = LOONGARCH_CPU_TYPE_NAME("la464");
799 }
800
801 if (!strstr(cpu_model, "la464")) {
802 error_report("LoongArch/TCG needs cpu type la464");
803 exit(1);
804 }
805
806 if (ram_size < 1 * GiB) {
807 error_report("ram_size must be greater than 1G.");
808 exit(1);
809 }
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800810 create_fdt(lams);
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800811 /* Init CPUs */
Tianrui Zhao8f307712023-05-16 16:27:57 +0800812
813 possible_cpus = mc->possible_cpu_arch_ids(machine);
814 for (i = 0; i < possible_cpus->len; i++) {
815 cpu = cpu_create(machine->cpu_type);
816 cpu->cpu_index = i;
817 machine->possible_cpus->cpus[i].cpu = OBJECT(cpu);
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800818 }
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800819 fdt_add_cpu_nodes(lams);
Tianrui Zhao0cf14782023-05-18 14:58:15 +0800820
821 /* Node0 memory */
822 memmap_add_entry(VIRT_LOWMEM_BASE, VIRT_LOWMEM_SIZE, 1);
823 fdt_add_memory_node(machine, VIRT_LOWMEM_BASE, VIRT_LOWMEM_SIZE, 0);
824 memory_region_init_alias(&lams->lowmem, NULL, "loongarch.node0.lowram",
825 machine->ram, offset, VIRT_LOWMEM_SIZE);
826 memory_region_add_subregion(address_space_mem, phyAddr, &lams->lowmem);
827
828 offset += VIRT_LOWMEM_SIZE;
829 if (nb_numa_nodes > 0) {
830 assert(numa_info[0].node_mem > VIRT_LOWMEM_SIZE);
831 highram_size = numa_info[0].node_mem - VIRT_LOWMEM_SIZE;
832 } else {
833 highram_size = ram_size - VIRT_LOWMEM_SIZE;
834 }
835 phyAddr = VIRT_HIGHMEM_BASE;
836 memmap_add_entry(phyAddr, highram_size, 1);
837 fdt_add_memory_node(machine, phyAddr, highram_size, 0);
838 memory_region_init_alias(&lams->highmem, NULL, "loongarch.node0.highram",
839 machine->ram, offset, highram_size);
840 memory_region_add_subregion(address_space_mem, phyAddr, &lams->highmem);
841
842 /* Node1 - Nodemax memory */
843 offset += highram_size;
844 phyAddr += highram_size;
845
846 for (i = 1; i < nb_numa_nodes; i++) {
847 MemoryRegion *nodemem = g_new(MemoryRegion, 1);
848 ramName = g_strdup_printf("loongarch.node%d.ram", i);
849 memory_region_init_alias(nodemem, NULL, ramName, machine->ram,
850 offset, numa_info[i].node_mem);
851 memory_region_add_subregion(address_space_mem, phyAddr, nodemem);
852 memmap_add_entry(phyAddr, numa_info[i].node_mem, 1);
853 fdt_add_memory_node(machine, phyAddr, numa_info[i].node_mem, i);
854 offset += numa_info[i].node_mem;
855 phyAddr += numa_info[i].node_mem;
856 }
Xiaojuan Yangc3da26f2022-08-25 11:36:59 +0800857
858 /* initialize device memory address space */
859 if (machine->ram_size < machine->maxram_size) {
Xiaojuan Yangc3da26f2022-08-25 11:36:59 +0800860 ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size;
David Hildenbrandb13e1152023-06-23 14:45:48 +0200861 hwaddr device_mem_base;
Xiaojuan Yangc3da26f2022-08-25 11:36:59 +0800862
863 if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) {
864 error_report("unsupported amount of memory slots: %"PRIu64,
865 machine->ram_slots);
866 exit(EXIT_FAILURE);
867 }
868
869 if (QEMU_ALIGN_UP(machine->maxram_size,
870 TARGET_PAGE_SIZE) != machine->maxram_size) {
871 error_report("maximum memory size must by aligned to multiple of "
872 "%d bytes", TARGET_PAGE_SIZE);
873 exit(EXIT_FAILURE);
874 }
875 /* device memory base is the top of high memory address. */
David Hildenbrandb13e1152023-06-23 14:45:48 +0200876 device_mem_base = ROUND_UP(VIRT_HIGHMEM_BASE + highram_size, 1 * GiB);
877 machine_memory_devices_init(machine, device_mem_base, device_mem_size);
Xiaojuan Yangc3da26f2022-08-25 11:36:59 +0800878 }
879
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800880 /* Add isa io region */
881 memory_region_init_alias(&lams->isa_io, NULL, "isa-io",
Xiaojuan Yang74725232022-07-29 15:30:18 +0800882 get_system_io(), 0, VIRT_ISA_IO_SIZE);
883 memory_region_add_subregion(address_space_mem, VIRT_ISA_IO_BASE,
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800884 &lams->isa_io);
Xiaojuan Yang98afb0d2022-07-12 16:32:02 +0800885 /* load the BIOS image. */
886 loongarch_firmware_init(lams);
887
Xiaojuan Yang27ad7562022-07-12 16:32:01 +0800888 /* fw_cfg init */
889 lams->fw_cfg = loongarch_fw_cfg_init(ram_size, machine);
890 rom_set_fw(lams->fw_cfg);
Xiaojuan Yang27ad7562022-07-12 16:32:01 +0800891 if (lams->fw_cfg != NULL) {
892 fw_cfg_add_file(lams->fw_cfg, "etc/memmap",
893 memmap_table,
894 sizeof(struct memmap_entry) * (memmap_entries));
895 }
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800896 fdt_add_fw_cfg_node(lams);
Xiaojuan Yangfb1cd3a2022-07-12 16:32:03 +0800897 loaderparams.ram_size = ram_size;
898 loaderparams.kernel_filename = machine->kernel_filename;
899 loaderparams.kernel_cmdline = machine->kernel_cmdline;
900 loaderparams.initrd_filename = machine->initrd_filename;
901 /* load the kernel. */
902 if (loaderparams.kernel_filename) {
903 if (lams->bios_loaded) {
904 loongarch_firmware_boot(lams);
905 } else {
906 loongarch_direct_kernel_boot(lams);
Xiaojuan Yang6a6f26f2022-06-06 20:43:29 +0800907 }
908 }
Xiaojuan Yang288431a2022-11-07 10:09:47 +0800909 fdt_add_flash_node(lams);
Xiaojuan Yangfb1cd3a2022-07-12 16:32:03 +0800910 /* register reset function */
911 for (i = 0; i < machine->smp.cpus; i++) {
912 lacpu = LOONGARCH_CPU(qemu_get_cpu(i));
913 qemu_register_reset(reset_load_elf, lacpu);
914 }
Xiaojuan Yang69d9c742022-06-06 20:43:25 +0800915 /* Initialize the IO interrupt subsystem */
916 loongarch_irq_init(lams);
Xiaojuan Yangee413a52022-08-10 15:33:57 +0800917 fdt_add_irqchip_node(lams);
Xiaojuan Yanga1f7d782022-08-10 15:50:35 +0800918 platform_bus_add_all_fdt_nodes(machine->fdt, "/intc",
919 VIRT_PLATFORM_BUS_BASEADDRESS,
920 VIRT_PLATFORM_BUS_SIZE,
921 VIRT_PLATFORM_BUS_IRQ);
Xiaojuan Yang3efa6fa2022-07-12 16:32:04 +0800922 lams->machine_done.notify = virt_machine_done;
923 qemu_add_machine_init_done_notifier(&lams->machine_done);
Song Gao0d588c42023-01-10 11:29:16 +0800924 /* connect powerdown request */
925 lams->powerdown_notifier.notify = virt_powerdown_req;
926 qemu_register_powerdown_notifier(&lams->powerdown_notifier);
927
Xiaojuan Yangfda3f152022-07-12 16:32:06 +0800928 fdt_add_pcie_node(lams);
Xiaojuan Yang02183692022-10-28 09:40:05 +0800929 /*
Song Gao46b21de2022-11-09 10:04:49 +0800930 * Since lowmem region starts from 0 and Linux kernel legacy start address
931 * at 2 MiB, FDT base address is located at 1 MiB to avoid NULL pointer
932 * access. FDT size limit with 1 MiB.
Xiaojuan Yang02183692022-10-28 09:40:05 +0800933 * Put the FDT into the memory map as a ROM image: this will ensure
934 * the FDT is copied again upon reset, even if addr points into RAM.
935 */
Song Gao46b21de2022-11-09 10:04:49 +0800936 fdt_base = 1 * MiB;
Xiaojuan Yang02183692022-10-28 09:40:05 +0800937 qemu_fdt_dumpdtb(machine->fdt, lams->fdt_size);
938 rom_add_blob_fixed("fdt", machine->fdt, lams->fdt_size, fdt_base);
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +0800939}
940
Xiaojuan Yang735143f2022-07-12 16:32:05 +0800941bool loongarch_is_acpi_enabled(LoongArchMachineState *lams)
942{
943 if (lams->acpi == ON_OFF_AUTO_OFF) {
944 return false;
945 }
946 return true;
947}
948
949static void loongarch_get_acpi(Object *obj, Visitor *v, const char *name,
950 void *opaque, Error **errp)
951{
952 LoongArchMachineState *lams = LOONGARCH_MACHINE(obj);
953 OnOffAuto acpi = lams->acpi;
954
955 visit_type_OnOffAuto(v, name, &acpi, errp);
956}
957
958static void loongarch_set_acpi(Object *obj, Visitor *v, const char *name,
959 void *opaque, Error **errp)
960{
961 LoongArchMachineState *lams = LOONGARCH_MACHINE(obj);
962
963 visit_type_OnOffAuto(v, name, &lams->acpi, errp);
964}
965
966static void loongarch_machine_initfn(Object *obj)
967{
968 LoongArchMachineState *lams = LOONGARCH_MACHINE(obj);
969
970 lams->acpi = ON_OFF_AUTO_AUTO;
971 lams->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6);
972 lams->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8);
Xiaojuan Yang288431a2022-11-07 10:09:47 +0800973 virt_flash_create(lams);
Xiaojuan Yang735143f2022-07-12 16:32:05 +0800974}
975
Xiaojuan Yangc3da26f2022-08-25 11:36:59 +0800976static bool memhp_type_supported(DeviceState *dev)
977{
978 /* we only support pc dimm now */
979 return object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) &&
980 !object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
981}
982
983static void virt_mem_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
984 Error **errp)
985{
986 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), NULL, errp);
987}
988
989static void virt_machine_device_pre_plug(HotplugHandler *hotplug_dev,
990 DeviceState *dev, Error **errp)
991{
992 if (memhp_type_supported(dev)) {
993 virt_mem_pre_plug(hotplug_dev, dev, errp);
994 }
995}
996
997static void virt_mem_unplug_request(HotplugHandler *hotplug_dev,
998 DeviceState *dev, Error **errp)
999{
1000 LoongArchMachineState *lams = LOONGARCH_MACHINE(hotplug_dev);
1001
1002 /* the acpi ged is always exist */
1003 hotplug_handler_unplug_request(HOTPLUG_HANDLER(lams->acpi_ged), dev,
1004 errp);
1005}
1006
1007static void virt_machine_device_unplug_request(HotplugHandler *hotplug_dev,
1008 DeviceState *dev, Error **errp)
1009{
1010 if (memhp_type_supported(dev)) {
1011 virt_mem_unplug_request(hotplug_dev, dev, errp);
1012 }
1013}
1014
1015static void virt_mem_unplug(HotplugHandler *hotplug_dev,
1016 DeviceState *dev, Error **errp)
1017{
1018 LoongArchMachineState *lams = LOONGARCH_MACHINE(hotplug_dev);
1019
1020 hotplug_handler_unplug(HOTPLUG_HANDLER(lams->acpi_ged), dev, errp);
1021 pc_dimm_unplug(PC_DIMM(dev), MACHINE(lams));
1022 qdev_unrealize(dev);
1023}
1024
1025static void virt_machine_device_unplug(HotplugHandler *hotplug_dev,
1026 DeviceState *dev, Error **errp)
1027{
1028 if (memhp_type_supported(dev)) {
1029 virt_mem_unplug(hotplug_dev, dev, errp);
1030 }
1031}
1032
1033static void virt_mem_plug(HotplugHandler *hotplug_dev,
1034 DeviceState *dev, Error **errp)
1035{
1036 LoongArchMachineState *lams = LOONGARCH_MACHINE(hotplug_dev);
1037
1038 pc_dimm_plug(PC_DIMM(dev), MACHINE(lams));
1039 hotplug_handler_plug(HOTPLUG_HANDLER(lams->acpi_ged),
1040 dev, &error_abort);
1041}
1042
Xiaojuan Yange27e5352022-08-10 16:37:21 +08001043static void loongarch_machine_device_plug_cb(HotplugHandler *hotplug_dev,
1044 DeviceState *dev, Error **errp)
1045{
1046 LoongArchMachineState *lams = LOONGARCH_MACHINE(hotplug_dev);
1047 MachineClass *mc = MACHINE_GET_CLASS(lams);
1048
1049 if (device_is_dynamic_sysbus(mc, dev)) {
1050 if (lams->platform_bus_dev) {
1051 platform_bus_link_device(PLATFORM_BUS_DEVICE(lams->platform_bus_dev),
1052 SYS_BUS_DEVICE(dev));
1053 }
Xiaojuan Yangc3da26f2022-08-25 11:36:59 +08001054 } else if (memhp_type_supported(dev)) {
1055 virt_mem_plug(hotplug_dev, dev, errp);
Xiaojuan Yange27e5352022-08-10 16:37:21 +08001056 }
1057}
1058
1059static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine,
1060 DeviceState *dev)
1061{
1062 MachineClass *mc = MACHINE_GET_CLASS(machine);
1063
Xiaojuan Yangc3da26f2022-08-25 11:36:59 +08001064 if (device_is_dynamic_sysbus(mc, dev) ||
1065 memhp_type_supported(dev)) {
Xiaojuan Yange27e5352022-08-10 16:37:21 +08001066 return HOTPLUG_HANDLER(machine);
1067 }
1068 return NULL;
1069}
1070
Tianrui Zhao8f307712023-05-16 16:27:57 +08001071static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms)
1072{
1073 int n;
1074 unsigned int max_cpus = ms->smp.max_cpus;
1075
1076 if (ms->possible_cpus) {
1077 assert(ms->possible_cpus->len == max_cpus);
1078 return ms->possible_cpus;
1079 }
1080
1081 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
1082 sizeof(CPUArchId) * max_cpus);
1083 ms->possible_cpus->len = max_cpus;
1084 for (n = 0; n < ms->possible_cpus->len; n++) {
1085 ms->possible_cpus->cpus[n].type = ms->cpu_type;
1086 ms->possible_cpus->cpus[n].arch_id = n;
Tianrui Zhaof3323882023-06-13 19:37:36 +08001087
1088 ms->possible_cpus->cpus[n].props.has_socket_id = true;
1089 ms->possible_cpus->cpus[n].props.socket_id =
1090 n / (ms->smp.cores * ms->smp.threads);
Tianrui Zhao8f307712023-05-16 16:27:57 +08001091 ms->possible_cpus->cpus[n].props.has_core_id = true;
Tianrui Zhaof3323882023-06-13 19:37:36 +08001092 ms->possible_cpus->cpus[n].props.core_id =
1093 n / ms->smp.threads % ms->smp.cores;
1094 ms->possible_cpus->cpus[n].props.has_thread_id = true;
1095 ms->possible_cpus->cpus[n].props.thread_id = n % ms->smp.threads;
Tianrui Zhao8f307712023-05-16 16:27:57 +08001096 }
1097 return ms->possible_cpus;
1098}
1099
Tianrui Zhao0cf14782023-05-18 14:58:15 +08001100static CpuInstanceProperties
1101virt_cpu_index_to_props(MachineState *ms, unsigned cpu_index)
1102{
1103 MachineClass *mc = MACHINE_GET_CLASS(ms);
1104 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
1105
1106 assert(cpu_index < possible_cpus->len);
1107 return possible_cpus->cpus[cpu_index].props;
1108}
1109
1110static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx)
1111{
1112 int64_t nidx = 0;
1113
1114 if (ms->numa_state->num_nodes) {
1115 nidx = idx / (ms->smp.cpus / ms->numa_state->num_nodes);
1116 if (ms->numa_state->num_nodes <= nidx) {
1117 nidx = ms->numa_state->num_nodes - 1;
1118 }
1119 }
1120 return nidx;
1121}
1122
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +08001123static void loongarch_class_init(ObjectClass *oc, void *data)
1124{
1125 MachineClass *mc = MACHINE_CLASS(oc);
Xiaojuan Yange27e5352022-08-10 16:37:21 +08001126 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +08001127
1128 mc->desc = "Loongson-3A5000 LS7A1000 machine";
1129 mc->init = loongarch_init;
1130 mc->default_ram_size = 1 * GiB;
1131 mc->default_cpu_type = LOONGARCH_CPU_TYPE_NAME("la464");
1132 mc->default_ram_id = "loongarch.ram";
Song Gao646c39b2023-04-06 15:25:28 +08001133 mc->max_cpus = LOONGARCH_MAX_CPUS;
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +08001134 mc->is_default = 1;
1135 mc->default_kernel_irqchip_split = false;
1136 mc->block_default_type = IF_VIRTIO;
1137 mc->default_boot_order = "c";
1138 mc->no_cdrom = 1;
Tianrui Zhao8f307712023-05-16 16:27:57 +08001139 mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids;
Tianrui Zhao0cf14782023-05-18 14:58:15 +08001140 mc->cpu_index_to_instance_props = virt_cpu_index_to_props;
1141 mc->get_default_cpu_node_id = virt_get_default_cpu_node_id;
1142 mc->numa_mem_supported = true;
1143 mc->auto_enable_numa_with_memhp = true;
1144 mc->auto_enable_numa_with_memdev = true;
Xiaojuan Yange27e5352022-08-10 16:37:21 +08001145 mc->get_hotplug_handler = virt_machine_get_hotplug_handler;
Thomas Huth240294c2023-05-23 13:04:34 +02001146 mc->default_nic = "virtio-net-pci";
Xiaojuan Yange27e5352022-08-10 16:37:21 +08001147 hc->plug = loongarch_machine_device_plug_cb;
Xiaojuan Yangc3da26f2022-08-25 11:36:59 +08001148 hc->pre_plug = virt_machine_device_pre_plug;
1149 hc->unplug_request = virt_machine_device_unplug_request;
1150 hc->unplug = virt_machine_device_unplug;
Xiaojuan Yang735143f2022-07-12 16:32:05 +08001151
1152 object_class_property_add(oc, "acpi", "OnOffAuto",
1153 loongarch_get_acpi, loongarch_set_acpi,
1154 NULL, NULL);
1155 object_class_property_set_description(oc, "acpi",
1156 "Enable ACPI");
Xiaojuan Yangf8ab9aa2022-08-10 16:41:52 +08001157 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE);
Xiaojuan Yang3dfbb6d2022-10-28 09:40:07 +08001158#ifdef CONFIG_TPM
1159 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS);
1160#endif
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +08001161}
1162
1163static const TypeInfo loongarch_machine_types[] = {
1164 {
1165 .name = TYPE_LOONGARCH_MACHINE,
1166 .parent = TYPE_MACHINE,
1167 .instance_size = sizeof(LoongArchMachineState),
1168 .class_init = loongarch_class_init,
Xiaojuan Yang735143f2022-07-12 16:32:05 +08001169 .instance_init = loongarch_machine_initfn,
Xiaojuan Yange27e5352022-08-10 16:37:21 +08001170 .interfaces = (InterfaceInfo[]) {
1171 { TYPE_HOTPLUG_HANDLER },
1172 { }
1173 },
Xiaojuan Yanga8a506c2022-06-06 20:43:20 +08001174 }
1175};
1176
1177DEFINE_TYPES(loongarch_machine_types)